Lister-cultivator.



W. s. GRAHAM. LISTER GULTIVATOR.

APPLICATION FILED FEB.18,1907.

W. S. GRAHAM.

LISTER .GULTIYA'IOR.

APPLICATION rum, 1'EB.18,1907

Patented Apr. 19, 1910.

3 SHEETS-SHEET 2.

W. S. GRAHAM.

LISTER UULTIVATOR.

APPLICATION FILED FBB.18,190'1.

955,510, Patented Apr. 19,1910.

3 SHEETSSHEET 3.

in i

'tVZLLIAlVE E. GRAHAM, OF CALNTLODT, ILLINOEL'E. ASSIGNOE 'I'O PAH/LIN6c GRENDORFF CCL,

OF ILLINOIS.

LIST EH- CUL'JPIVATOR.

Specification of Letters i atent. Application filed February 18, 1907.

mama Apr. 1a, 1910. Serial No. 357,925.

Zion?! "whom "it may concern lleitknowuthat .l,.lV1i.I.i.\.\i S.(lnxnxu, a citizen of the United States, residing at t'anton. in thecounty of Fulton and State of lllinois, have invented certain new anduseful Improvements in ll iister -tlultivalors; and I do hereby declarethat the following is a full, clear, and. exact description of the Iinvention, which will enable others skilled in the art to which. itappertains to make and use the same.

This invention has reference more part icularly to improvements inlister cultivators of that type in which individual gangs of cultivatingdevicesa, each furnished with its own pole or tongue, are connected by atransverse spreader member whereon the drivers seat mounted.

. The objects of my invention are, to ronneet the cultivator gangs withthe spreader member so as to allow each gang greater freedom ofmovement; to provide improved means for controlling the movement andadjustment of the cultivating appliances; and to improve the details ofthe structure.

in the accompanying drawings, which illustrate my invention Figure 1 isa plan view of a lister cultivator containing my improvements; Fig. 2 aside elevation of the cultivator gang at the right of Fig. 1, lookingat' the same from the inner side; Fig. 3 a side elevation of the driversseat and its connection with the spreader,m-ember, taken on the line 3-3of Fig. 1.; Fig. 4 a cross sectional view through the spreader member onthe line 4L-t of Fig. 1 looking as indicated by the arrow, showing theman nor of connecting the brace rods of the drivers seat with thespreader member; Fig. 5 a fragmentary sectional view, somewhat en'-larged, on the line 5-5 of Fig. 2 looking as indicated by the arrow,showing the connection of the shaft, that carries the-shovels, with theframe. of the cultivator whereby the shovels may be moved and adjustedin-. dependent of the other cultivator appliances; Fig. 6 a fragmentarysectional view somewhat enlarged on-the line 66 of Fig. 2 looking asindicated by the arrow, showing the connection of the shaft that carriesthe cultivator disks with the truck frame; Fig. 7 a fragmentary view-0nthe line. 7-7

of Fig. 2 showingcthe horizontal pivotal connection of the spreadermember with the l l l front of the machine.

view through the spreader member on the line S-8 showing the parts thathold the spreader member from turning; Fig. 9 an enlarged view of thelever 20 and adjacent parts looking at. the same from the inside of thecultivator gang; Fig. 10 a sectional view on the crooked line l0l0 ofFig. 9, looking as indicated by the arro and Fig. 11 an enlargedtransverse sectional. View taken through pivot points 54, 57 and thepivot of parts 5t and 53, looking toward the tance each side thereof,and said bar, to

gethcr with the braces 12 thereof form the frame which carries the truckwheels. Each gang has a pair of concave truck wheels 13 which areadapted to travel in the furrow along the edges thereof for guiding theen]- t-ivating devices and said wheels are mounted on stub axlesextending laterally from the lower end of the brackets 14, the upperends of which are formed to engage the bar 11 to which they are secured.These brackets which extend forwardly as shown, are connected with thebar'll so that they may' be adjusted along said bar to and from thetongue for increasing or decreasing the" distance between the truckwheels, and have braces 15 which are secured to their lower ends andadjustably connected to the portions 16 of the braces 12, which saidportions extend parallel with the bar 11, so that they may be adjustedto and from the tongue along said portion to correspond with theadjustment of the brackets 14 along the bar 1 Near each end of the bar11 a casting 17 is secured to the rear face thereof which-said castingsare provided with horizontal openings 18 which receive the sleeve likeextencultivator gang; Fig. 8 a cross sectional particularly pointed anddownwardly,

- ing levers and 21 and protrudes a suffi- .cient length outside'of eachrocking lever the flattened portion 29 at the end of the rod rockinglevers and extends Outside of said I machine. These shovels 33 areof theusual circular and larger than the corresponding "which the disks 26'areconnected, is prefance of this object the opening in the rocking -lever21 through which the shaft 24 is passed 22 with openings in each endthereof 1 through which the shafts 23 and 24 which carry the cultivatorappliances are passed and have the arm 25 which extends upwardly fromthe part 22 intermediate of the openings thereof and serves as a leverfor rocking said brackets. The shaft 23 to erably square and-is securedin the square openlngs 27 in the forward ends of the rockto provide forthe required lateral adjustment of the .disks thereon. These disks whichare of the usual type, are mounted on the short spindles 28 which areconnected to 30 so that they may be adjusted on the inner side or outerside thereof at various angles in the customary manner, and the rods30sit in longitudinal grooves in the under face of the arms 31 and maybe adjusted lengthwise thereof for movingthe disks to and from the shaft.23. j The upper ends of the arms 31 are clamped onto the shaft 23 asshown at 32 and may be adjusted lengthwise thereof for moving the disksnearer to or farther away from the furrow at the center of the machine.The shaft 24 which carries the shovels is likewise preferably squareand'passes through the openings at the rear of the rocking levers asfshown in the drawings a sultable distance't'o provide for adjustment ofthe shovels to and from the center of the type and are secured to thefeet 34 which are adjust oly connected at the lower rear end of the dragbars 35, the said drag bars being connected at their forward ends to thecastings 36 which fit partially around the square shaft andare lockedinplace thereon by 'means of the U bolt 37 whereby they may be readilyadjusted along said shaft 24.

It is designed that the shafts 24 be so mounted that they may be movedand adjusted independent of 1the other cultivator appliances and thatthey be arranged to yield somewhat in case the shovels carried therebystrike an obstruction and in furtheris circular in form to permit freerotation of said shaft. The-opening 38 (see Figs. 5, 9 and 10) 1n therocking lever 20 is likewise opening in the rocking lever 21 to receivethe sleeve 39 which rotates freely therein. I

Z This sleeve projects inwardly from the lower end of the arm 40 whichis disposed at the outer side of the rocking lever 20 and the opening 41through square and fits the shaft 24 so as to cause the shaftto turnwith the movement of the sleeve and arm 40. Extending angularly awayfrom the outer'side of the rocking lever 20 to which it is secured isthe segmental rack 42, the said rack being so inclined to bring thehandle of the lever 43 which operates adjacent said rack withinconvenient reach of the driver whose seat is centrally arranged on thespreader member 9. Intermediate of 'thesegmental rack 42 of the rockinglever 20 and the arm 40 is another arm 44 which is provided with acircular portion or loop 44 at the lower end thereof which surrounds aportion of the sleeve 39, and is thereby adapted to. swing freely aroundthe sleeve portion 39. This arm which extends approximately to the topof the segmental rack, as does also the arm 40, is provided with a lug45 extending outwardly at the top thereof, which has a perforationthrough which the bolt 46 is loosely passed. The end of the arm 40 whichis in the arc of movement with the lug 45 is likewise perforated andreceives the bolt 46 loosely through the opening thereof, and the spring47 is interposed between the head 48 of the bolt and the arm 40 so' asto draw the nut 49 of the bolt 46 against the lug 45 on the arm 44 andforce the end of the arm 40 against said lug. The inner face of the arm44 is grooved to receive the end of the lever 43 which is provided withthe spring actuated pin operable by the lever 50 at the grip of thelever 43 for locking the lever in various positions of adjustment alongthe face of the rack 42 'whereby the shaft 24 may be turned and theshovels 33 thereby raised and lowered.

As has been hereinbefore described, the arm 44 swings freely around theshaft 24 and the sleeve 39 on the end of the arm 40 embraces the shaftso as to cause the shaft 'to move with said arm 40 and the tension ofthe spring 47 is such as; to hold the arm 40 against the lug 45 andcause the shaft 24 and the parts carried thereby to normally follow themovement of the lever 43. Then the shovel 33 however, strikes anobstruction or is otherwise caused to rise, the arm 40 is moved a'wayfrom the lug 45 against the tension of the spring. 47 which returns thearm 40 to the normal position agams the lug 45 as soon as theobstruction is passed.

Pivotally connected to the upper end of the arms 25 of the rockinglevers 20 and 21 are secured strap irons which extend forwardly as at52, thenceinwardly as at 51 and have the meeting forward ends thereofsecured said sleeve is preferably together and term a swingingsupci'slructure l'oi operating the cultivator agipliances and for sup'iorting the spreader member. The forward end ot this superstrtmrue ispi\= oied to the upper end of the swinging lever 53 which pivotallyconnected as at 54- at the inner side of the tongue. This lever 5:; isprovided on the outer side thereof adjau cent the lower end with thesegmental gear 55 which swings around the pivot 54L as a center andmeshes with a corresponding segmental gear 56 pivoted as at 57 at thebase of the segmental rack 58 which said segmental rack inclinesinwardly as shown to ward the drivers seat. The segmental gear 56 hasthe arm 59 extending upward lywhich said arm is grooved to receive theend of the lever (a) and moves along the taco of the ack and extendsinwardly a suitable distance to be within easy reach of the operatorbetween the cultivator gangs. This lever (30 similarly to the lever 4-3heretofore described has the spring pressed pin indicated at 61 whichnormally engages the teeth of the segmental rack and is operated by thelever 62 at the handle of the lever (S0 for locking the lever in variouspositions o't adjustment along the taco of the rack.

As is apparent, the lever 53 by reason of the construction described isoperated by the movement of the lever 60 in a direction opposite to themovement of said lever 60 and through the connection of the superstiucture hereinbefore described with the ends of the arms 25 of the rockinglevers swings said rocking levers on their pivotal connection with theparts 17 on'the transverse bar 11 whereby a rotary movement imparted tothe shaft 23 and an arcuate li'lOVG1l16I1l3 lS imparted to the shaft 2-laround the shaft 23 as a center, the rearward movement of the lovers 60being sufiicient. to swing the shaft. 23 to such a position as to liftthe disks 26 from the soil and to move the shaft 24 so as to lift theshovels likewise from the soil the height to which the said shovels areraised being dependent upon the adj ustment of the lever 43. As isapparent, the rearward movement of the lever 60 is resisted by theweight of the cultivator appliances and to facilitate such movement thespring 63 is provided which connects the upper endof the lever with therear of the segmental rack and assists in throwing the lever to therearward position.

About midway of the length of the portions 52, which as has beenhereinbeforo indicated are arranged parallel, one at each side of eachcultivator gang, a rod or bar 64 extends transversely between saidparts, the

ends 65 thereof being turned rearwardly and securely fastened to theinner face of the cations 52, an aifpwardly projecting pin 66 mgprovided on said bar 64, intermediate of the portion-'52 ofthe-superstructure. On

the outer face o I. each of the portions 52 and extending throughout thelength oi? said portions is a. part (18 which has a laterally projectingflange (37 at the top thereof on a plane with or a little abo c the edgeof the portion 52 and the outer edge of the flange is curved to form anarc with the pin 6 as the center. ltlounted on and arranged to ride oneach flange (37 is a. casting G9 which has a foot. portion 70 hookedunder the edge of the flange 67 to retain said casting in place thereonand said castings have the portion 71 projecting inwardly and pro vidcdwith grooves in the under taco thereof which arcadapted to receive theend o'lthe bar 72 to which they are secured, said bar being pivoted atits center on the pin (36 and held in place by the cotter pin 73 so astoswing aboutsaid pin as a center, the castings 69 in. such movementriding upon the upper face of the flanges 67. As is shown, in the drawinthere is one of these castings at each site of each gang and st; listings are provided with the outwardy in cling lugs 74 suitablydistanced to receive the concave roller 75 thorobetween upon which saidrollers the tubular spreader member 9 is carried and permitted to movelongitudinally. Extending upwardly at each side of the spreader member 9is an arm 7 6 which said arms 76 have a similar concave roller 77secured between the upper ends thereof for holding the spreader memberin place on the roller 75, the vertical distance between the rollers 77and 75 being sutlicient. to permit limited vertical movement of thetubular spreader member 9 between the arms 76. By means of thisconstruction the spreader tube 9 which connects the cultivator gangs iscapable of longitudinalmovement across the top of each gang to allowsaid gangs to approach and rccede to follow the furrows, the rollers 7 5and 7 7 being provided to per mit such movementwith very littlefriction. Furthermore, the spreader tube is capable of swinging with thecastings 69 around the pin 66 on each gang as a center and either gangis thus able to move freely ahead of or behind its companion gangwithout interfering with the operation hf the cultivator. Looseengagement of the, rollers 75 and 7 7 with the spreader member 9 alsopermits slight lateral tilting of either cultivator gang withoutgripping the spreader member.

As has been hereinbefore suggested, the drivers seat is carried on thespreader member intermediate of the cultivator gangs-and there isprovided a casting which has the sleeve portion 78 which embraces thespreadertube and is securely bolted thereto. Projecting rearwardly fromthis sleeve portion 78 is a flat table like portion 79 which has theplate spring 80 bolted thereto, the

oppositeencl of which is disposed above the wardly from the spreadertube 9 and has the seat 81 secured thereto and facing the front of themachine. Projecting forwardly froin the sleeve like part 78 on line withthe center of the seat is a part 82 to which the foot rest 83 ispivotally connected as at 84. The bolt 85 which passes through the rodsof the foot rest some distance from the pivot bolt84 also passes throughthe areuate slot 86 near the end of said part 82 for adjusting the endof the foot 'restto a higher or lower position. At each side of the seatand an equal distance therefrom are the collars 87 which are bolted tothe shaft. projecting angularly down at each side of the collar 87 ashort distance, the said lugs being perforated to receive the ends ofthe truss rods 89 one of, which engages the groove 90 in the arm 91which projects downwardly from the plate 79 at the rear of the spreaderrod and the'other of which engages the groove 92 in the part projectingdownpart 82 in front ofthe spreader rod 9, the said truss rods beingprovided with nuts 93 on the ends thereof whereby they may be drawn tautto brace the central portion of the spreader member and hold sameagainst twisting. The collars'87 also serve as stops to limit themovement of the gangs toward the center of the spreader rod byengagement with the eastings G9 and bolts 94 are provided which arepassed horizontally through the ends of the spreader rod 9,130 limit themovement of the cultivatorgangs away from the center of the spreaderrod.

For holdingthe spreader tube 9 from turning and to hold the seat 81 atall times in an upright position, the spreader tube is provided aboveone of the gangs and intermediate of the castings 69 thereon with anelongated sleeve 95 which has awfiat part 90 thereabove which is slottedhorizontally "and transversely of the spreader tube to admit the flatrod 9'7 therethrough and permit considerable swing thereof in said slot.This flat rod97 extends forwardlyand downwardly from the spreader tube 9and the forward end is horizontally pivoted to the meeting ends of theflat braces of the superstructure as at 98 so as to permit said rod toswing laterally across the cultivator gang the said rod being in allpositions of its movement in engagement with the slot 99 so as to holddie spreader tube from turning This constrlurtion' holds the spreadertube from turning with reference to the cultivator gang upon which theconstruction above described is placed and tilting of the saidcultivator gang longitudinally or from front to rear sw'ingsthe spreaderrod with it. The cultivator gang at the otherend of the spreader rod,however, is free to swing around said spreader rod and permits tiltingmovement of each of said cultivator gangs These collars have the lugs 88vrock shafts on sai longitudinally or fromtfront to rear, inde pendentof the other cultivator gang.

To protect the centerof the furrows from earth which is thrown up by thedisks 26 and the shovels 33, the shield 100 is provided on eachcultivator gang which extends rearwardly therefrom and is adapted whenthe disks and shovels are lowered into their operative position to ridein the furrow and cover the center thereof. This shield is supported onthe rod 101 to which the straps 102 on' the shieldare bolted, theforward end of said rod being pivotally connected as at 102 to the lowerend of the arm 103 which extends downwardly from the center of the shaft28 and is secured thereto so as to turn with. said shaft. Extendingrearwardly from the shaft 24 at the center thereof is an arm 104 whichis connected by means of the chain 105 with the rod 101 some distancefrom the pivot point 102, the said arm 104 being secured to the shaft 24to turn therewith so that when said shaft is turned to raise the shovelsthe said arm 104 swings upwardly and raises the shield from the furrow.end of the arm 104 a hook bolt is provided which passes verticallythrough an opening in the end of the arm 104 and is furnished with thewinged nut 106 whereby the hook bolt may be tightened or loosened. Bymeans of this connection, a link of the chain 105 is fastened on said.hook. bolt which. is then drawn upward 'by mean'sof the winged nut tosuch a position as to'hold the chain from engagement.

hat I claim is:

1. In a cultivator, the combination of a frame supported on transportingmeans, a pair of rock shafts on said frame, each provided withcultivating appliances thereon, means for operating one of said rockshafts. independent of the other rock shaft for moving the cultivatingappliances carried-thereby toand from the ground, and means forsimultaneously operating both rock shafts independent of thetransporting means to move the cultivating appliances carried by saidrock shafts to and from the ground.

2 In a cultivator, the combination of a. frame supported ontransportingmeans,an adjustable part on said frame movable independentof the transporting means, a seat. support on said adjustable part, apair of 'd frame, each provided with cultivating appliances thereon,andmeans for adjusting said cultivator appliances relative to theadjustable part;

3. In a cultivator, the combination of a; traveling frame, anadjustable'part on said traveling frame provided with a seat sup-' portthereon, two sets of cultivating appliances mounted on said adjustablepart and movable thereby to and fromthe ground,

vating appliances to and from the ground independent of said adjustablepart and the other set of cultivating appliances.

4. In a cultivator, the combination of a traveling frame, an adjustableframe on the traveling frame, a seat support on said ad justable frame,cultivator appliances connected with the adjustable frame and operableby the movement thereof to and from the ground, a rock shaft on saidadjustable frame provided with cultivator appliances thereon, means foroperating said rock shaft independent of the adjustable frame foradjusting the cultivator appliances to and from the ground.

5. A cultivator comprising a traveling frame, a rocking part on saidframe, a shaft carried by said rocking with cultivating devices thereon,a second shaft carried by said rocking art and movable independentthereof, saic second. shaft being provided with cultivating devicesthereon adapted to move to-and from the ground by said shaft.

,6, In a cultivator, the combination of a traveling frame, a swingingframe on the traveling frame, two rock shafts, each providc'd withcultivating appliances thereon mounted onthe swinging frame and operableby the movement of the swinging frame to carry the cultivatingappliances to and from the ground, and means for moving one of the rockshafts and cultivating appliances carried thereby independent of rockshaft and the swinging frame for moving the cultivating appliancesthereon to and from the ground.

7. In a cultivator, the combination of a traveling frame, a swingingframe thereon provided with two sets of cultivating aipliancesmoun'tedthereon, adapted in the movement of the swinging frame to be moved toand from the ground and a lock lever mounted on the swinging frame andprovided with yielding means for one set of cultivating appliances toand from the ground independent of the other set of cultivatingappliances.

8. A cultivator comprising a traveling frame, a rocking part on saidframe, a shaft carried by said rocking part and adapted to moveindependently thereof, said shaft being provided with cultivatingdevices thereon adapted to be moved by the independent movement of saidshaft to and from the ground, a leverfor independently operating saidshaft and provided with means engaging the rocking part for yieldinglyholding said shaft against independent movement, a

second shaft fixedly mounted in said rocking part, and a lever formoving said rocking part for actuatin both of the shafts carried therebyto move the cultivator device carried thereby to and from the ground.

part and provided the independent movement of section.

the other operating! cultivating devices connected with said frames. a

10. A multiple row cultivator, comprising a spreader-membersubstantially circular in cross-section, separate f 'ames traveling onand uided by said spreader-member and movable toward and from eachother, a horizontally-swinging arm pivotally connected with one of saidframes and non-rotatably connected with the spreader-member, cultivatingdevices connected with said frames, and a seat-support mounted on thespreaderniember.

11. In a multiple row cultivator, the combination with separatecultivator sections, of a spreader-member carrying the seat-sup-.port,and meanspivotally connected with one of the cultivator sectionsand having a longitudinally slidable relation witli'tliespreader-member, for holding said spreadermember from turningcircumferentially with referenceto the connected cultivator 12. In adouble row cultivator, the combination of a separate cultivator framefor each row, a horizontally rotary art on each frame, a circularspreader sha t connected with the horizontally rotary part on eachcultivator frame, rollers on each horizontallyrotary part engaging theupper and lower face of'the shaft, and adapted to per mit rotary andlongitudinal movement of said shaft, a longitudinally slotted part onsaid spreader shaft adjac at one of the cultivator frames, and ahorizontallypivoted rod on said adjacent cultivator frame eiigagingsaidslot in said slotted part for holding the spreader member fromvertical rotation with reference to that particular cultivator frame.

13. In a double row cultivator, the combination of a separate cultivatorframe for each row, a spreader member connecting said cultivator frame,a seat supporting casting on said spreader member intermediate of saidcultivator frames and truss rods connected with the spreader member ateach side of the seat casting and engaging portions of the aforesaidseatcastingat the front and rear of the spreader member.

1 1. In a double row cultivator, the combination of a separatecultivator frame for each row, a shaft like spreader, member connectingsaid cultivator frames, a seat supporting castin traveling on saidspreader member.

on intermediate of the cultivator frames, a seat,

mounted on said seat casting, a foot rest extending forwardly from saidseat casting, a part secured on the spreader member at each side of theseat casting and *a pair of truss rods connecting said parts, one ofsaid truss rods engaging a portion of the seat casting at the front ofthe spreader member, and the other of said truss rods engagin theportion of the seat casting at the rear the spreader member.-

15. A cultivator comprising a traveling frame, a shaft and lock leverpivoted on'tlle v same horizontal center, cultivating appliances on thesaid shaft adapted in the oscillation of the shaft to move to andfromthe ground, a part on the shaft adjacent the lock lever --and aspring arranged to yieldingly hold said part against the lock lever forthe purpose specified.

16. "In a cultivator, the combination of a plurality of cultivatorgangs, eachmounted on a transporting means, a spreader member connectingthe cultivator gangs, a pair of 7 rock shafts in eachcultivator gang,cultifrom the 'va-tor appliances connected directly with each rockshaft, means for operating both rock shafts simultaneously, independentof the transporting means, for moving the cultivator appliancespcarriedthereby to and ound, and means for operating one of sa1d ro'ck shaftsindependently of I the other.

17. In a cultivator, the combination of a; plurality of cultivator gangseach mounted on transporting means, a spreader member connecting thecultivator gangs, a rock shaft associated with each cultivator gang, apair of arms secured to the rock shaft of each gang, a second rock'shaft carried by each pair of arms, cultivator appliances secured toeach rock shaft and means for operating one of saidrock shaftsindependent of the other. I

18. In a cultivator, the combination of a plurality of cultivator gangs,each mounted on transporting means, a spreader member connecting thecultivator gangs, a rock shaft connected with each cultivator gang.

a second rock shaft connected directly with the first rock shaft andmovable-around the. same as a center as it rocks, cultivator ap'pliances secured to each rock shaft and 1 means for operating one ofsaid rock shafts independent of the other.

bination with separate row sections, of a spreader member carrying. theseat 'support,

signature, in In multlple IQ a or, the com- 1 nally slidable relationwith the spreader member forholding said spreader member bination withseparate row sections, of a bar adapted to support a 'seat and supportedin connection with said ectionsin a latersaid bar and an varm pivotallyconnected with one of the cultivator sections and projecti'ngtthroughthe slotted member'on the bararidf-liaifing a longitudinally slidablerelat-ions therewith adapted to prevent the bar "from turning withreference to the cultivator section with which it is connected while theother cultivator section is permitted to turn freely about said bar.

bination with'separate row sections, of seat supports approxlmatelyround 1n cross sectlOIl connecting the cultivator sections, a

slot therethrough, said slot bearing longitudinally of said meniber,being larger from its center on either side to its other edge, and anarm pivoted to onejof the cultivator sec-- tions-"withits free endprojecting through the slotted member, said arm facilitating the holdingof the spreader member from turni'ng 'and the. slotted member permittingthe arm to be projected therethrough to accommodatethe varying distancebetween the member, as the cultivator gang is moved longitudinally withreference to said bar.

In testimony whereof-I have affixed my presence of two witnesses.

- WILLIAM SGRAHAM. Wit nesses C. B. REED,

means pivotally connected with one of the L. H. GEN'L' from turningcircumferentially with refer-.

member on the seat support provided with a cultivator sections andhaving a longitudi- 21. In a multiple row cultivator, the com- I allyslidable relation, a lotted member ,on

22. In'a multiple row cultivator, the compoint of pivoting of the barand the spreader v

